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Feldspar is the most abundant mineral group in the crust, making up roughly

  • A.a tenth of it
  • B.nine tenths of it
  • C.a hundredth of it
  • D.half of it

Answer: D

Correct answer: half of it

Feldspar accounts for something close to sixty per cent of the crust, more than any other group, and it is the dominant mineral of the granites, the gabbros and most of the sediments derived from them. It is also the mineral whose weathering supplies most of the world’s clay.

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